at the minute I have pain on the forearm extensors(I think this is correct-its on the bach of the palm side of the forearm and the pain is a couple of inches down from the elbow.I think this happened initially with the wrist going back on my grip on the bench press. The pain then cleared for another week but could I have then exacerbated it by not getting my forearms back and around when practising power cleans and tending to muscle them up?
I've been following SS-when this clears should I add some forearm assistance work.
what can I do to treat it?

I have been icing the elbow directly and this had got rid of the pain near the elbow, however I was doing 3 sets of 5 shoulder presses last friday and got pain lower down the forearm near the wrist (back of hand)on my last set.Is this a result of inflammation?
I've decided to give it a rest for a week and just continue to squat heavy.
I'll then test it out on a pressing movement next friday.Should I rest longer?
I don't want this to become chronic.
I'm going to take ibuprofen for a week,hydrate well and continue to ice(where on the arm should I ice?)

Well, if you don't want it to be become chronic you should stop aggravating it with pressing exercises you shouldn't be doing while it's injured....

Ice is probably good. Stretching and massaging your extensors (well, I think it's extensors... because you gave poor anatomical descriptions... lateral/medial or pictures is good, heh) is good. Then it would probably be a good idea after everything is resolved there to do light strengthening work (negatives with very light weight.. break out those pink DBs) to work the strength back up... staying away from those aggravating exercises that you seem to want to keep doing.

But hey.. that's my non-professional suggestion regarding your situation. Would be a good idea to see a doc and/or physical therapist about that.

I developed a case of "golfer's elbow" caused by a combination of OLY-lifting and a high volume of pullups and dips and found it to be caused by a general tightness of the muscles as well as a buildup of scar tissue and muscle adhesions in my forearm.

Go to a chiro or sports medicine guy certified in both ART (active release technique) and the Graston technique, and have him(her) work on your forearms and workout out the tightness and adhesions that are causing your pain. Ice and rest did very little to help and after awhile the pain was so bad I couldn't do pullups or presses. I am lucky to have a well qualified chiro that focuses on sports medicine.